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1.
《Journal of Coordination Chemistry》2012,65(11):1213-1223
Copper (II) complexes [Cu(dmit)(phen)]2 (1) and [Cu(mnt)(phen)] n (2) (mnt2??=?maleonitriledithiolate, dmit2??=?1,3-dithiole-2-thione-4,5-dithiolate, phen?=?1,10-phenanthroline) have been prepared by ligand-exchange between phen and [N(Bu)4]2[Cu(dmit)2] or [N(Bu)4]2[Cu(mnt)2]. Both complexes have been characterized by spectroscopic, electrochemical, and single-crystal X-ray analysis. In complex 1, dimers are extended into a two-dimensional array by weak S5–Cu contacts. In complex 2, monomers are extended into chains in a head-to-tail arrangement by weak Cu–S coordination bonds and π–π stacking interactions. 相似文献
2.
N. V. Cherkashina S. E. Nefedov M. A. Uvarova A. P. Klyagina A. A. Markov M. N. Vargaftik I. I. Moiseev 《Russian Journal of Inorganic Chemistry》2014,59(5):446-454
New carboxylate platinum(II) complexes: syn and anti isomers of Pt(phen)(OOCMe)2 molecular complex, [Pt(phen)(NCMe)2](O3SCF3)2, as well as unusual sandwich complex [Pt(phen)2]2+ · 2syn-[Pt(phen)(OOCMe)2] where [Pt(phen)2]2+ cation is inserted between two syn-Pt(phen)(OOCMe)2 molecules were synthesized and structurally characterized by X-ray diffraction analysis. As distinct from syn- and anti-Pt(phen)(OOCMe)2 and [Pt(phen)(NCMe)2](O3SCF3)2 complexes with flat phenanthroline ligand, the phen ligands in [Pt(phen)2]2+ cation have a curved configuration. Comparative DFT analysis of geometry of model structures phen, phen+, phenH+, and [Ptphen2] n+ (n = 1, 2) showed that electron removal from phen molecule had no effect on its geometry in both free state and platinum(II) complexes. 相似文献
3.
Hu Mao-Lin Huang Zhen-Yan Cheng Ya-Qian Wang Shm Lin Juan-Juan Hu Yi Xu Duan-Jun Xu Yuan-Zhi 《中国化学》1999,17(6):637-643
The title complex Eu(III)(TTA)3(phen) (where TTA = thenoyltrifluoroacetone monoanion; phen = 1,10-phenanthroline) has been synthesized in mixed solvents of acetone and ethanol (1:1 volume ratio) and its crystal structure has been determined by X-ray diffraction. The complex crystals are triclinic, space group P 1 (# 2) with cell dimensions of a = 1.32.41 (2) nm, b = 1.5278(4) nm, c = 0.9755(3) nm, α = 92.49 (2)°, β = 102.57(2)°, γ = 91.62(2)°, V = 1.9268(8) nm3, Z = 2, μ (Mo Ka)= 18.77 cm?1, Dx=1.720 g/cm3. The coordination geometry of Eu atom is a distorted square antiprism, and the encapsulated structure that can meet the structural requirement of the typical europium luminescent sensor. The fluorescence spectrum suggests that the complex is a strong photoluminescent material. 相似文献
4.
Yan Yang Liu-Ting Yan Wen-Gui Duan Xiao Li Rong-Huan Qin 《Supramolecular chemistry》2013,25(10):707-712
Three coordination polymers [Mn(Nip)(Pbim)] n (1), [Co(Nip)(Pbim)] n (2) and [Zn(Nip)(Pbim)] n (3) [5-nitroisophthalate (Nip) and 2-(2-pyridyl)benzimidazole (Pbim)] were synthesised and characterised by elemental analysis, IR and single-crystal X-ray diffraction. Single-crystal X-ray diffraction analysis reveals that 1, 2 and 3 have 1-D ladder chain structures constructed from μ3-bridge Nip ligands and metal atoms. All of these chain-like structures are finally packed into supramolecular networks through hydrogen bonds and π–π stacking interactions. Fluorescence spectral method has been used for the study on the interaction of film sperm DNA with complexes. The results show that the corresponding fluorescence spectrum appeared and the intensity was enhanced with the growth of the concentration of DNA. All of the results indicate that there exists strong interaction of the complexes with DNA. 相似文献
5.
Hong Ren Tianyou Song Jianing Xu Xin He Li Wang Ping Zhang Junwei Ye 《Transition Metal Chemistry》2006,31(8):992-998
Two new zinc(II) compounds, [Zn(nba)2(phen)(H2O)] (1) and [Zn(nip)(phen)]
n
(2) [nba = 4-nitrobenzoic acid, nip = 5-nitroisophthalic acid, phen = 1,10-phenanthroline] have been hydrothermally synthesized
by reaction of zinc acetate and phen with the ligands nba and nip, respectively. Compound (1) consists of mononuclear zinc(II) molecules which forms a 2D supramolecular structure based on hydrogen bonds between the
hydroxyl groups (and aromatic groups as well) and carboxylate oxygen atoms. Compound (2) displays 1D zigzag chains which are combined to 1D supramolecular double-chains by π–π stacking and further assembled into
a 3D supramolecular framework through hydrogen bonds. 相似文献
6.
《Journal of Coordination Chemistry》2012,65(5):836-844
Abstract Two metal-organic coordination complexes, [Cd(Zaltoprofen)(phen)]n (1) and [Cd(Zaltoprofen)(btz)]n (2) (where Zaltoprofen = 5-(1-carboxyethyl)-2-(phenylthio)phenylacetic acid, phen = 1,10-phenanthroline, btz = thiabendazole), have been synthesized by reaction of Cd(NO3)2 with Zaltoprofen, 1,10-phenanthroline or thiabendazole under hydrothermal conditions and characterized by single crystal X-ray diffraction, IR spectra, elemental analyses, powder X-ray diffraction (XRD), electronic spectra (UV-vis) and fluorescent properties. Compound 1 crystallizes in the monoclinic P21/c space group and 2 in the monoclinic system with space group P21/n. [Cd(Zaltoprofen)(phen)]n (1) features a 1-D zigzag chain. The zigzag chains are linked to form a 2-D layer through π–π stacking interactions. [Cd(Zaltoprofen)(btz)]n (2) displays a 2D net with alternately arranged left- and right-handed helical chains. 相似文献
7.
Mao‐Lin Hu Ji‐Xin Yuan Fan Chen Qian Shi 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m186-m188
In polymeric {[Eu(pzdc)(NO3)(phen)(H2O)]·H2O}n [pzdc is 2,3‐pyrazinedicarboxylate (C6H2O4) and phen is 1,10‐phenanthroline (C12H8N2)], each europium(III) ion is coordinated by seven O atoms (from three pzdc anions, a nitrate anion and a water molecule) and the two N atoms of the phen ligand, resulting in a nine‐coordinated europium(III) center with a distorted monocapped square‐antiprismatic coordination polyhedron. Four pzdc anions bridge four europium(III) ions, forming a parallelogram unit, the four vertices of which are occupied by the four pzdc anions. Moreover, each parallelogram unit links six other adjacent parallelogram units, forming a two‐dimensional network with disordered lattice water molecules. 相似文献
8.
Maria Fumanal Yu Harabuchi Etienne Gindensperger Satoshi Maeda Chantal Daniel 《Journal of computational chemistry》2019,40(1):72-81
The electronic excited state reactivity of [Mn(im)(CO)3(phen)]+ (phen = 1,10-phenanthroline; im = imidazole) ranging between 420 and 330 nm have been analyzed by means of relativistic spin–orbit time-dependent density functional theory and wavefunction approaches (state-average-complete-active-space self-consistent-field/multistate CAS second-order perturbation theory). Minimum energy conical intersection (MECI) structures and connecting pathways were explored using the artificial force induced reaction (AFIR) method. MECIs between the first and second singlet excited states (S1/S2-MECIs) were searched by the single-component AFIR (SC-AFIR) algorithm combined with the gradient projection type optimizer. The structural, electronic, and excited states properties of [Mn(im)(CO)3(phen)]+ are compared to those of the Re(I) analogue [Re(im)(CO)3(phen)]+. The high density of excited states and the presence of low-lying metal-centered states that characterize the Mn complex add complexity to the photophysics and open various dissociative channels for both the CO and imidazole ligands. © 2018 Wiley Periodicals, Inc. 相似文献
9.
《Journal of Coordination Chemistry》2012,65(15):2497-2510
Reactions of fresh M(OH)2 (M = Zn2+, Cd2+) precipitate and (RS)-2-methylglutaric acid (H2MGL), 2,2′-bipyridine (bipy), or 1,10-phenanthroline (phen) in aqueous solution at 50°C afforded four new metal–organic complexes [Zn2(bipy)2(H2O)2(MGL)2] (1), [Zn2(phen)2(H2O)(MGL)2] (2), [Cd(bipy)(H2O)(MGL)] · 3H2O (3), and [Cd(phen)(H2O)(MGL)] · 2H2O (4), which were characterized by single crystal X-ray diffraction, IR spectra, TG/DTA analysis as well as fluorescence spectra. In 1, the [Zn(bipy)(H2O)]2+ moieties are linked by R- and S-2-methylglutarate anions to build up the centrosymmetric dinuclear [Zn2(bipy)2(H2O)2(MGL)2] molecules. In 2, the 1-D ribbon-like chains [Zn2(phen)2(H2O)(MGL)2] n can be visualized as from centrosymmetric dinuclear [Zn2(phen)2(H2O)2(MGL)2] units sharing common aqua ligands. Both 3 and 4 exhibit 1-D chains resulting from [Cd(bipy)(H2O)]2+ and [Cd(phen)(H2O)]2+, respectively, bridged alternately by R- and S-2-methylglutarate anions in bis-chelating fashion. The intermolecular and interchain π···π stacking interactions form supramolecular assemblies in 1 and 1-D chains in 2–4 into 2-D layers. The hydrogen bonded lattice H2O molecules are sandwiched between 2-D layers in 3 and 4. Fluorescence spectra of 1–4 exhibit LLCT π → π* transitions. 相似文献
10.
《Journal of Coordination Chemistry》2012,65(9):1570-1581
Three ligands, 2-(3-(carboxymethyl)-1,10-phenanthroline-[5,6-d]imidazole-1-yl)acetate (CPIA), 2-(benzo[d][1,3]dioxol-4-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (BIP), and 2-(9H-carbazol-3-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (CIP), and their complexes, [Co(phen)2(CPIA)]3+ (1) (phen = 1,10-phenanthroline), [Co(phen)2(BIP)]3+ (2), and [Co(phen)2(CIP)]3+ (3), have been synthesized and characterized. Binding of the three complexes with calf thymus DNA (CT-DNA) has been investigated by spectroscopic methods, cyclic voltammetry, and viscosity measurements. The three complexes bind to DNA through an intercalative mode, and the size and shape of the intercalative ligands have significant effects on the binding affinity of complexes to CT-DNA. 相似文献
11.
A chiral coordination compound {(Δ)[Fe(II)(phen)3][(Δ)Fe(III)(C2O4)3](NH4)(H2O)3(DMF)}n (phen = 1,10‐phenanthroline), (DMF = N,N'‐Dimethylformamide), has been synthesized, and the structure has been revealed by infrared spectroscopy and X‐ray single‐crystal diffraction. The framework consists of two chiral subunits. One subunit (Δ)[(Fe(III)(C2O4)3]3? which as host anion forms a chiral porous three‐dimensional supermolecular network with lattice water, lattice DMF and lattice ammonium cation through hydrogen bonds. And then the other is Δ[Fe(II)(phen)3]2+ which as guest cation fills in the chiral cavity located in the previously mentioned host porous network. 相似文献
12.
Yan-Qiu Yang Cheng-Fu Su Jun-Di Zhang Gui-Yang Zhang 《Journal of Coordination Chemistry》2016,69(24):3762-3775
Three new Cd(II) complexes incorporating both 2-(1H-imidazol-1-methyl)-1H-benzimidazole (imb) and 1,4-benzenedicarboxylate (bdic2?), [CdCl(bdic)1/2(imb)2]n (1), {[Cd(bdic)(imb)(H2O)]·DMF·2H2O}n (2), and [Cd(bdic)(imb)]·3H2O}n (3), have been prepared and structurally characterized by single crystal X-ray diffraction. Bdic2? anions connect the?Cd-imb-Cd-imb?chains leading to a 2-D structure of 1. Bdic2?(A) and bdic2?(B) anions link the binuclear [Cd2(imb)2(H2O)2] units forming a 2-D structure of 2. Complex 3 features a 2-D structure involving supramolecular “double-layer” motifs. IR spectra and thermogravimetric curves are consistent with the results of the X-ray crystal structure analysis; 1–3 exhibit good fluorescence in the solid state at room temperature. 相似文献
13.
Guang‐Xi Han Yong‐Juan Song Peng‐Cheng Zhao Xia Chen Zheng‐Bo Han Dr. 《无机化学与普通化学杂志》2009,635(11):1664-1668
A novel coordination polymer [Cd(pc)(phen)(H2O)]n (H2pc = pamoic acid, phen = 1,10‐phenanthroline) has been synthesized under hydrothermal conditions. Single crystal X‐ray diffraction analysis reveals that the compound crystallizes in triclinic space group P1. All the CdII atoms in the compound are hexacoordinate and are linked by pamoicate ligands to form a one‐dimensional zigzag chain. Furthermore, two adjacent zigzag chains are connected by the μ2‐(H2O) molecules to form a double‐chain with rhombic grids. There exist intermolecular C–H ··· π contacts, π–π stacking and hydrogen‐bonding interactions. Compound 1 displays strong fluorescent emission in the solid state at room temperature. 相似文献
14.
《Journal of Coordination Chemistry》2012,65(14):2578-2586
Two new compounds, [Zn(aip)(phen)] n (1) and [Mn(aip)(phen)] n (2) (H2aip?=?5-aminoisophthalic acid, phen?=?1,10-phenanthroline), have been synthesized by solvothermal methods and structurally characterized. X-ray diffraction analyses indicate that 1 and 2 have a 2-D layer structure, with aip2? adopting two coordination motifs. The coordination configuration of the metal plays a crucial role in formation of different topological structures. Thermogravimetric analyses of 1 and 2 show considerable thermal stability. The fluorescence of 1 and 2 in the solid state has also been investigated. 相似文献
15.
《Journal of Coordination Chemistry》2012,65(13):1427-1431
Complex [Bi2(phen)2Br5(NO3)] n has been synthesized by reaction of Bi(NO3)3 with potassium bromide and 1,10-phenanthroline. The complex has been isolated and characterized by IR-, 1H NMR-, 13C NMR spectrum and elemental analysis. The structure of the [Bi2(phen)2Br5(NO3)] n was confirmed by X-ray crystallography which shows the complex to be a one-dimensional polymer as a result of bridging bromides. The two Bi atoms have different environments, six and seven coordinate. 相似文献
16.
《Journal of Coordination Chemistry》2012,65(11):1835-1845
Lanthanide(III) heteronuclear and binuclear complexes [TbGd(NAA)6(phen)2] (1) and [Tb2(NAA)6(phen)2] · 2C3H7NO (2) (NAA = 1-naphthylacetic acid, phen = 1,10-phenanthroline) were prepared and their crystal structures were determined. In 1 and 2, each lanthanide is nine-coordinate by two bidentate-bridging and two tridentate chelating-bridging carboxylate groups, one bidentate chelating carboxylate and one phen molecule in a distorted monocapped square antiprism. The solid-state luminescence behavior and the antibacterial activities were studied. Complexes 1 and 2 exhibited characteristic emission of Tb(III) ion 5D4 → 7FJ (J = 6–0) under UV radiation at room temperature. A main excitation peak (359 nm) of 2 appears under red emission of 615 nm. By contrast, all emission peak intensities of 1 were enhanced by addition of gadolinium(III), and the 545 nm band is much stronger than the 615 nm band, attributed to, under perturbation of the ligand field, the probability of 5D4 → 7F3 transition of Tb(III) was greatly enhanced in 2. Because of perturbation of the ligand field by addition of gadolinium(III), the probability of 5D4 → 7F5 transition of Tb(III) was greatly enhanced in 1 and green fluorescence was observed. The antibacterial activity showed that the two complexes were active against Escherichia coli, Staphylococcus aureus and Bacillus subtilis. 相似文献
17.
Changkun Xia Yuanyuan Min Wen Sun Kai Yang Yunlong Wu 《Journal of Coordination Chemistry》2018,71(1):12-21
Two dinuclear Fe(III) metal–organic complexes with tetracarboxylate and chelating N-donor ligands, [Fe(Hbtec)(phen)(H2O)]2·2H2O (1) and [Fe(Hbtec)(bpy)(H2O)]2·2H2O (2) (H4btec = 1,2,3,5-benzenetetracarboxylic acid, phen = 1,10-phenanthroline, bpy = 2,2′-bipyridine) have been prepared and characterized by elemental analysis, IR spectroscopic, and X-ray diffraction methods. Both complexes crystallize in the monoclinic space group P21/c with two Fe(III) ions bridged by two Hbtec3? ligands into a dinuclear unit. Hydrogen bonding connects the dinuclear units into a 3-D framework. The dinuclear units are 10-connected nodes that produce a 3-D framework with topology Schläfli symbol as (312·428·55). Thermal stabilities and luminescent properties of the two complexes have also been investigated. 相似文献
18.
《Journal of Coordination Chemistry》2012,65(12):1951-1962
Three new coordination polymers, [M(Ambt)2(Nip)] n (M = Cd for 1 and Zn for 2) and [Ni0.5(Nip)(H2O)2] (HAmbt) (3) (H2Nip = 5-nitroisophthalic acid, Ambt = 2-amino-6-methylbenzothiazole), have been synthesized by hydrothermal methods and are further characterized by X-ray diffraction, IR spectra, elemental analysis, TG-DTA and fluorescence spectra. The structural analyses suggest that 1 and 2 are 1-D chains bridged by Nip anions, in which Ambt is a monodentate ligand and the carboxylate groups of Nip are monodentate and chelating bidentate. Complex 3 consists of two individual fragments, six-coordinate mononuclear NiII and HAmbt cation, in which HAmbts are encapsulated into the concave of the 2-D layer formed by mononuclear units through classic N?H·· · O hydrogen bonds. Abundant hydrogen bond interactions drive the formation of packing structure of the complexes. The three solid complexes display strong emission peaks from intraligand charge transfer similar to free Ambt at room temperature. 相似文献
19.
合成了锌(II)与3,4-吡啶二羧酸和1,10-邻菲啰啉形成的配位聚合物[Zn(PDC)(phen)]n (1) (H2PDC=3,4-吡啶二羧酸, phen=1,10-邻菲啰啉), 对其进行了元素分析、红外光谱和X射线单晶衍射表征, 测定了晶体结构. 该聚合物属单斜晶系, P2(1)/n空间群, a=0.77136 nm, b=1.9757(4) nm, c=1.0680(2) nm, β=95.36(3)°, V=1.6205(6) nm3, Z=4, Dc=1.683 Mg/m3, Mr=410.68, F(000)=832, μ=1.55 mm-1, 最终偏离因子R1=0.0608, wR2=0.0967. 该化合物中Zn原子与来自两个PDC的三个羧基氧原子, 另外一个PDC的吡啶氮原子, 以及phen的两个氮原子配位, 形成的ZnN3O3八面体通过PDC桥联形成二维层状网络结构. 此外还研究了该聚合物的热性质和荧光性质. 相似文献
20.
《Journal of Coordination Chemistry》2012,65(24):4237-4254
Seven new transition metal complexes formulated as [M2(1,4-tpbd)(diimine)2(H2O)2]4+ [M = Zn, Co, Ni, Cd; 1,4-tpbd = N,N,N′,N′-tetrakis(2-pyridylmethyl)benzene-1,4-diamine; diimine is a N,N-donor heterocyclic base like 1,10-phenanthroline (phen), 2,2′-bipyridine (bpy), 4,5-diazafluoren-9-one (dafo)] have been synthesized and structurally characterized by X-ray crystallography: [Zn2(1,4-tpbd)(phen)2(H2O)2]4+ (1), [Zn2(1,4-tpbd)(bpy)2(H2O)2]4+ (2), [Co2(1,4-tpbd)(phen)2(H2O)2]4+ (3), [Ni2(1,4-tpbd)(phen)2(H2O)2]4+ (4), [Ni2(1,4-tpbd)(bpy)2(H2O)2]4+ (5), [Ni2(1,4-tpbd)(dafo)2(H2O)2]4+ (6) and [Cd2(1,4-tpbd)(phen)2(H2O)2]4+ (7). Single crystal diffraction reveals that the metals in the complexes are all in a distorted octahedral geometry. The interactions of the seven complexes with calf thymus DNA (CT-DNA) have been investigated by UV absorption, fluorescence, circular dichroism spectroscopy and viscosity measurements. The apparent binding constants (Kapp) are calculated to be 5.2?×?105 M?1 for 1, 1.05?×?105 M?1 for 2, 5.76?×?105 M?1 for 3, 4.57?×?105 M?1 for 4, 1.29?×?105 M?1 for 5, 1.7?×?105 M?1 for 6, 2.53?×?105 M?1 for 7, the binding propensity to the calf thymus DNA in the order: 3 (Co-phen) > 1 (Zn-phen) > 4 (Ni-phen) > 7 (Cd-phen) > 6 (Ni-dafo) > 5 (Ni-bpy) > 2 (Zn-bpy). Furthermore, these complexes display efficient oxidative cleavage of supercoiled DNA; the Zn(II)/H2O2 and Cd(II)/H2O2 systems efficiently cleave DNA attributed to the peroxide ion coordinated to the Zn(II) and Cd(II), which enhanced their nucleophilicity, this is rare. 相似文献